hasn't happened to me et, and as of right now I am playing and I can also get on the website.
No need to worry for Ban/IP Ban.
They mentioned on the Cross Fire Fan Page on Facebook that Crossfire Site is going to be down for now, as they fix some stuff. But you can easily interpret from it that the game has a chance of going down, as well.
dont work for me. i have a internet problem
but actual i think z8 servers are down./